Girls Next Door on Cover of Playboy

In March, Holly Madison, Bridget Marquardt, and Kendra Wilkinson will appear on the cover of Playboy. This will mark the third time The Girls Next Door have been on the front page of the men's publication.

"It kinda happened by accident," said Hugh Hefner. "It was not the original plan. I knew we were overdue for a cover featuring the girls."

The issue will represent Playboy's take on the world's sexiest celebrities.

"For our annual sexiest celebrities list, we always get votes from readers on the Internet of who should be on the top of the list. Lo and behold, as the votes were coming in, we found the girls moving up higher and higher on the list," Hefner said.

Other celebrities to make the list are Jennifer Love Hewitt, Alicia Keys, Cameron Diaz, Beyonce, Christina Aguilera and Britney Spears.

As for his relationship with his girls, the Playboy founder said:

"To be perfectly frank, I have unexpectedly fallen in love. It is the relationship with Holly that will probably last forever. The others will last for as long as they want it to last before going on with their careers and lives."